CN207169365U - Air purge energy conserving system structure in air separation unit - Google Patents
Air purge energy conserving system structure in air separation unit Download PDFInfo
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- CN207169365U CN207169365U CN201721084848.2U CN201721084848U CN207169365U CN 207169365 U CN207169365 U CN 207169365U CN 201721084848 U CN201721084848 U CN 201721084848U CN 207169365 U CN207169365 U CN 207169365U
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Abstract
The utility model discloses the air purge energy conserving system structure in air separation unit, it includes steam heater, silencer and the molecular sieve adsorber I and molecular sieve adsorber II being set up in parallel, include air cleaning system and sorbent regeneration system on molecular sieve adsorber I and molecular sieve adsorber II, described air cleaning system includes the air inlet duct and air outlet duct being connected with two molecular sieve adsorbers, sorbent regeneration system includes the dirty nitrogen outlet pipeline being connected with two molecular sieve adsorbers and dirty nitrogen inlet pipeline, steam heater air inlet duct connects ice chest, the gas outlet connection silencer of the dirty nitrogen outlet pipeline of molecular sieve adsorber.Structure occupation of land is small, purification effect is good, pipe stress optimizes, energy loss is low, had both met the operating efficiency of purification system variable working condition, and had realized the energy conservation object of system again.
Description
Technical field
The utility model energy conserving system technical field, and in particular to one kind occupation of land is small, purification effect is good, pipe stress is excellent
Change, reduce the air purge energy conserving system structure in the air-separating plant of energy loss.
Background technology
With the fast development of the industries such as petrochemical industry, metallurgy, medicine, air separation technology is also developed rapidly,
Air-separating plant is overall to be developed towards directions such as scale maximization, operation cost degradation, system operatio stabilisations.Molecular sieve is pure
Key one step of the change system as air-separating plant purification of air, it is that space division system runs essential one steadily in the long term
Safety assurance.Considering capital equipment molecular sieve in Air purification systems will meet that gas treatment amount is big, filling/replacing molecule
Sieve adsorbant is convenient, the principles such as overhaul of the equipments is easy, selects horizontal molecular sieve.Sieve purification system pipe arrangement is different from air point
Arranged from the normal temperature pipeline in device and cryogenic piping, conduit operating temperature is high, and working condition is more, and handover operation is complicated, generally
Space division limit is limited by, the different arrangement of pipeline can cause the larger difference of device longtime running energy consumption.In order to
In increasingly competitive space division market, it disclosure satisfy that owner is pure in limited place, rationalization ground arrangement air-separating plant
Change system, with reference to piping flexibility analysis, unnecessary energy loss is reduced, for large-scale air separator, proposed a kind of empty
The energy-saving mechanism of air separation purification system.
Utility model content
For the above-mentioned problems in the prior art, technical problem to be solved in the utility model is to provide one kind and accounted for
Ground is small, purification effect is good, pipe stress optimizes, the air purge energy conserving system structure in the air separation unit of reduction energy loss.
Air purge energy conserving system structure in described air separation unit, including steam heater, silencer and set side by side
The molecular sieve adsorber I and molecular sieve adsorber II put, it is characterised in that wrapped on molecular sieve adsorber I and molecular sieve adsorber II
Air cleaning system and sorbent regeneration system are included, described air cleaning system includes what is be connected with two molecular sieve adsorbers
Air inlet duct and air outlet duct, the dirty nitrogen that sorbent regeneration system includes being connected with two molecular sieve adsorbers go out
Mouth pipeline and dirty nitrogen inlet pipeline, corresponding connecting pipe are provided with control valve, described air inlet duct and dirty nitrogen
Outlet conduit is arranged on the bottom of two molecular sieve adsorbers, and air outlet duct and dirty nitrogen inlet pipeline are arranged on two points
The top of son sieve absorber, steam heater air inlet duct connection ice chest, gas outlet connect dirty nitrogen inlet pipeline air inlet,
The gas outlet connection silencer of dirty nitrogen outlet pipeline, the adsorbent in molecular sieve adsorber be alundum (Al2O3), dirty nitrogen use
In the regeneration of adsorbent.
Air purge energy conserving system structure in described air separation unit, it is characterised in that described air inlet duct,
Dirty nitrogen outlet pipeline, air outlet duct and dirty nitrogen inlet pipeline are three-way pipe structure.
Air purge energy conserving system structure in described air separation unit, it is characterised in that air inlet duct and molecular sieve
The connecting pipe of absorber I is provided with air inlet control valve I, enters with the connecting pipe of molecular sieve adsorber II provided with air
Gas control valve II, the air inlet connection air cooling tower of air inlet duct.
Air purge energy conserving system structure in described air separation unit, it is characterised in that dirty nitrogen outlet pipeline and molecule
The connecting pipe of sieve absorber I is provided with dirty nitrogen leaving air control valve I, and dirt is provided with the connecting pipe of molecular sieve adsorber II
Nitrogen leaving air control valve II.
Air purge energy conserving system structure in described air separation unit, it is characterised in that air outlet duct and molecular sieve
The connecting pipe of absorber I is provided with air leaving air control valve I, goes out with the connecting pipe of molecular sieve adsorber II provided with air
Gas control valve II, the gas outlet of air outlet duct are sequentially connected pressure charging system and ice chest.
Air purge energy conserving system structure in described air separation unit, it is characterised in that dirty nitrogen inlet pipeline and molecule
The connecting pipe of sieve absorber I is provided with dirty nitrogen air intake control valve I, and dirt is provided with the connecting pipe of molecular sieve adsorber II
Nitrogen air intake control valve II.
Air purge energy conserving system structure in described air separation unit, it is characterised in that molecular sieve adsorber I and molecule
The operating platform of adsorbent replacing is respectively provided with the sieve both ends end socket of absorber II；Molecular sieve adsorber I and molecular sieve are inhaled
The steel construction operating platform for pipeline support and maintenance is provided between adnexa II.
Air purge energy conserving system structure in described air separation unit, it is characterised in that molecular sieve adsorber I and molecule
It is horizontal molecular sieve adsorber to sieve absorber II.
By using above-mentioned technology, compared with prior art, the beneficial effects of the utility model are：
The utility model is by using two horizontal molecular sieve adsorbers being set up in parallel, and two are used alternatingly, and one pure
Change air, another adsorbent reactivation, can guarantee that the continuity of air purge work, work can be realized by using steam heater
It is unrestricted to make the cycle, and energy consumption conversion is adsorbed to adsorbent using dirty nitrogen, avoids secondary pollution than electric energy economy,
Structure occupation of land is small, purification effect is good, pipe stress optimizes, energy loss is low, by structure of the present utility model, by activity
The hygroscopicity of aluminum oxide and the deep impurity-removing of molecular sieve, Efficient air purification effect is realized, and system pipeline makes through flexibility analysis
For the stress level of pipeline in allowed band, mouth of pipe load and torque meet the requirement of equipment manufacturer, both meet purification system
The operating efficiency of variable working condition, the energy conservation object of system is realized again.
Brief description of the drawings
Fig. 1 is the utility model purification system lower floor pipe arrangement；
Fig. 2 is the utility model purification system upper strata pipe arrangement.
In figure：1A- molecular sieve adsorbers I, 1B- molecular sieve adsorbers II, 2- steam heaters, 3- silencers, 41- air
Air intake control valve I, 42- air inlets control valve II, 51- dirt nitrogen leaving air control valve I, 52- dirt nitrogen leaving air control valve II,
61- air leaving air control valve I, 62- air leaving air control valve II, 71- dirt nitrogen air intake control valve I, 72- dirt nitrogen air inlet control
Valve II, 8- air inlet ducts, 9- dirt nitrogen outlet pipelines, 10- air outlet ducts, 11- dirt nitrogen inlet pipelines.
Embodiment
With reference to the accompanying drawing in the example of the utility model, specific embodiment of the present utility model is described in detail.Obviously,
Described example is only a part of example of the utility model, rather than whole examples.Based on the example in the utility model, sheet
The every other example that field those of ordinary skill is obtained under the premise of creative work is not made, it is new to belong to this practicality
The protection domain of type.
As depicted in figs. 1 and 2, the air purge energy conserving system structure in air separation unit of the present utility model, including steam
Heater 2, silencer 3 and the 1A of molecular sieve adsorber I being set up in parallel and the 1B of molecular sieve adsorber II, the 1A of molecular sieve adsorber I,
II 1B of molecular sieve adsorber, two equipment and corresponding control valve are same model, and are horizontal molecular sieve adsorber, and two
Person is standby each other, wherein a set of normal air purifies operation, other set can carry out adsorbent reactivation operation simultaneously；Molecular sieve
Include air cleaning system and sorbent regeneration system on the 1A of the absorber I and 1B of molecular sieve adsorber II, described air is net
Change system includes the air inlet duct 8 and air outlet duct 10 being connected with two molecular sieve adsorbers, adsorbent reactivation system
System includes the dirty nitrogen outlet pipeline 9 being connected with two molecular sieve adsorbers and dirty nitrogen inlet pipeline 11, corresponding connecting tube
Road is provided with control valve.
Steam heater 2 is arranged in below molecular sieve adsorber, is easy to steam and the dirty nitrogen access from ice chest；Eliminate the noise
Device 3 is arranged in above molecular sieve adsorber, is easy to collect the dirty nitrogen of regeneration, is raised discharge.
As shown in figure 1, purification system first layer pipeline described in the utility model
Adsorbent in two molecular sieve adsorbers of the utility model is alundum (Al2O3), the signified dirty nitrogen of the utility model
Gas comes from ice chest, i.e., air after purification enters booster expansion machine system, and after pressurized, oxygen and nitrogen are carried out into ice chest
Separation.In separation process, it is less than 99.99% for nitrogen gas purity, i.e. the not high part of purity is back to steam heater 2, makees
For molecular sieve activation regeneration gas, the moisture that purified air is stayed in molecular sieve adsorber, solid particle polluter etc. are taken out of, make suction
Attached dose of regeneration.
Described air inlet duct 8 and dirty nitrogen outlet pipeline 9 are arranged on the bottom of two molecular sieve adsorbers, air
Outlet conduit 10 and dirty nitrogen inlet pipeline 11 are arranged on the top of two molecular sieve adsorbers, the inlet tube of steam heater 2
Road connects ice chest, the air inlet of gas outlet connection molecule sieve absorber dirt nitrogen inlet pipeline 11, the outlet of dirty nitrogen outlet pipeline 9
Mouth connection silencer 3.
For the ease of enabling air and dirty nitrogen even into two molecular sieve adsorbers, the utility model is by air intlet
Pipeline 8, dirty nitrogen outlet pipeline 9, air outlet duct 10 and dirty nitrogen inlet pipeline 11 are disposed as three-way pipe structure, i.e., four
The end of collecting of individual pipeline is provided with two symmetrical branch pipes for passing through two molecular sieve adsorbers.
For the ease of control, the utility model is set on connecting pipe of the air inlet duct 8 with the 1A of molecular sieve adsorber I
There is air air intake control valve I 41, air inlet control valve II 42, air are provided with the 1B of molecular sieve adsorber II connecting pipe
The air inlet connection air cooling tower of inlet pipeline 8；The connecting pipe of dirty nitrogen outlet pipeline 9 and the 1A of molecular sieve adsorber I is provided with
Dirty nitrogen leaving air control valve I 51, dirty nitrogen leaving air control valve II 52 is provided with the 1B of molecular sieve adsorber II connecting pipe；It is empty
The gas outlet conduit 10 and 1A of molecular sieve adsorber I connecting pipe is provided with air leaving air control valve I 61, with molecular sieve adsorber
II 1B connecting pipe is provided with air leaving air control valve II 62, and the gas outlet of air outlet duct 10 is sequentially connected pressure charging system
And ice chest, pressure charging system are supercharger and expanding machine；On dirty nitrogen inlet pipeline 11 and the 1A of molecular sieve adsorber I connecting pipe
Provided with dirty nitrogen air intake control valve I 71, dirty nitrogen air intake control valve II is provided with the 1B of molecular sieve adsorber II connecting pipe
72, the pipe arrangement of the utility model such as Fig. 1 and Fig. 2 planning, using principle is arranged symmetrically, when making equipment switching operation, pipeline
Drag losses is consistent, maintains the gas flow pattern stability in piping as far as possible, according to being actually needed, near the molecular sieve mouth of pipe with
And the not good enough position of pipeline flexible, the spring supports of suitable types can be selected, to meet under molecular sieve adsorber difference operating mode
Pipe stress requirement so that pipeline flexible is optimal, and pipe arrangement is most short, and energy loss is minimum.
For the ease of operation, the utility model is at the 1A of molecular sieve adsorber I and the 1B both ends end socket of molecular sieve adsorber II
Operating platform is respectively equipped with, is changed for adsorbent；Steel knot is provided between the 1A of molecular sieve adsorber I and the 1B of molecular sieve adsorber II
Structure operating platform, while meet pipeline, valve support and upkeep operation.
As illustrated, adsorbent reactivation technique is carried out with the 1A purified airs of molecular sieve adsorber I, the 1B of molecular sieve adsorber II
Exemplified by, the course of work of the present utility model is as follows：
Air inlet control valve I 41 and air leaving air control valve I 61 are opened, the air to be purified from air cooling tower is through air
Inlet pipeline 8 is purified into the 1A of molecular sieve adsorber I, now air inlet control valve II 42 and air leaving air control valve II
62 are closed, and the moisture, solid impurity in air to be purified are rested in the 1A of molecular sieve adsorber I adsorbent, and purifying is completed
Afterwards, air leaving air control valve I 61 is opened, now air leaving air control valve II 62 is closed, and air after purification is through air outlet slit pipe
Road 10 flows out, and is pressurizeed into pressuring expansion system, enters back into ice chest and carries out the separation of oxygen and nitrogen；
Meanwhile open dirty nitrogen air intake control valve II 72 and dirty nitrogen leaving air control valve II 52, the low-purity from ice chest
Nitrogen enter steam heater 2 as dirty nitrogen, heated by steam, the dirty nitrogen after heating is through dirty nitrogen inlet pipeline
11 enter the 1B of molecular sieve adsorber II, and the moisture in adsorbent and solid impurity etc. are taken out of with air-flow, complete adsorbent again
Raw, now, dirty nitrogen air intake control valve I 71 and dirty nitrogen leaving air control valve I 51 are closed.Dirty nitrogen is through dirty nitrogen outlet pipeline 9
Direct high altitude discharge, it is nitrogen due to using regeneration gas into silencer 3, avoids secondary pollution during direct high altitude discharge.
Preferred embodiments of the present utility model are the foregoing is only, are not limited to the utility model, it is all in this reality
Within new spirit and principle, any modification, equivalent substitution and improvements made etc., it should be included in of the present utility model
Within protection domain.
Claims (8)
1. the air purge energy conserving system structure in air separation unit, including steam heater（2）, silencer（3）And it is set up in parallel
Molecular sieve adsorber I（1A）With molecular sieve adsorber II（1B）, it is characterised in that molecular sieve adsorber I（1A）Inhaled with molecular sieve
Adnexa II（1B）Upper to include air cleaning system and sorbent regeneration system, described air cleaning system includes and two molecules
Sieve the air inlet duct of absorber connection（8）And air outlet duct（10）, sorbent regeneration system include and two molecules
Sieve the dirty nitrogen outlet pipeline of absorber connection（9）And dirty nitrogen inlet pipeline（11）, corresponding connecting pipe, which is provided with, to be controlled
Valve, described air inlet duct（8）With dirty nitrogen outlet pipeline（9）It is arranged on the bottom of two molecular sieve adsorbers, air
Outlet conduit（10）And dirty nitrogen inlet pipeline（11）It is arranged on the top of two molecular sieve adsorbers, steam heater（2）Enter
Gas port pipeline connects ice chest, and gas outlet connects dirty nitrogen inlet pipeline（11）Air inlet, dirty nitrogen outlet pipeline（9）Gas outlet
Connect silencer（3）.
2. the air purge energy conserving system structure in air separation unit according to claim 1, it is characterised in that described sky
Gas inlet pipeline（8）, dirty nitrogen outlet pipeline（9）, air outlet duct（10）And dirty nitrogen inlet pipeline（11）It is threeway
Tubular construction.
3. the air purge energy conserving system structure in air separation unit according to claim 2, it is characterised in that air intlet
Pipeline（8）With molecular sieve adsorber I（1A）Connecting pipe be provided with air inlet control valve I（41）, with molecular sieve adsorber
Ⅱ（1B）Connecting pipe be provided with air inlet control valve II（42）, air inlet duct（8）Air inlet connection air cooling tower.
4. the air purge energy conserving system structure in air separation unit according to claim 2, it is characterised in that dirty nitrogen goes out
Mouth pipeline（9）With molecular sieve adsorber I（1A）Connecting pipe be provided with dirty nitrogen leaving air control valve I（51）, inhaled with molecular sieve
Adnexa II（1B）Connecting pipe be provided with dirty nitrogen leaving air control valve II（52）.
5. the air purge energy conserving system structure in air separation unit according to claim 2, it is characterised in that air outlet slit
Pipeline（10）With molecular sieve adsorber I（1A）Connecting pipe be provided with air leaving air control valve I（61）, with molecular sieve adsorber
Ⅱ（1B）Connecting pipe be provided with air leaving air control valve II（62）, air outlet duct（10）Gas outlet be sequentially connected increasing
Pressure system and ice chest.
6. the air purge energy conserving system structure in air separation unit according to claim 2, it is characterised in that dirty nitrogen enters
Mouth pipeline（11）With molecular sieve adsorber I（1A）Connecting pipe be provided with dirty nitrogen air intake control valve I（71）, inhaled with molecular sieve
Adnexa II（1B）Connecting pipe be provided with dirty nitrogen air intake control valve II（72）.
7. according to the air purge energy conserving system structure in any described air separation units of claim 1-6, it is characterised in that point
Son sieve absorber I（1A）With molecular sieve adsorber II（1B）The operation that adsorbent replacing is respectively provided with the end socket of both ends is put down
Platform；Molecular sieve adsorber I（1A）With molecular sieve adsorber II（1B）Between be provided with steel construction behaviour for pipeline support and maintenance
Make platform.
8. according to the air purge energy conserving system structure in any described air separation units of claim 1-6, it is characterised in that point
Son sieve absorber I（1A）With molecular sieve adsorber II（1B）It is horizontal molecular sieve adsorber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721084848.2U CN207169365U (en) | 2017-08-28 | 2017-08-28 | Air purge energy conserving system structure in air separation unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721084848.2U CN207169365U (en) | 2017-08-28 | 2017-08-28 | Air purge energy conserving system structure in air separation unit |
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| CN207169365U true CN207169365U (en) | 2018-04-03 |
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| CN201721084848.2U Active CN207169365U (en) | 2017-08-28 | 2017-08-28 | Air purge energy conserving system structure in air separation unit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3673971A1 (en) * | 2018-12-27 | 2020-07-01 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Purification system having pipelines arranged at different levels in height direction |
| CN113769535A (en) * | 2021-08-31 | 2021-12-10 | 恒力石化（大连）炼化有限公司 | Molecular sieve adsorption energy-saving system |
-
2017
- 2017-08-28 CN CN201721084848.2U patent/CN207169365U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3673971A1 (en) * | 2018-12-27 | 2020-07-01 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Purification system having pipelines arranged at different levels in height direction |
| US11426693B2 (en) | 2018-12-27 | 2022-08-30 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Purification system having pipelines arranged at different levels in height direction |
| CN113769535A (en) * | 2021-08-31 | 2021-12-10 | 恒力石化（大连）炼化有限公司 | Molecular sieve adsorption energy-saving system |
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